基于3S的澜沧县土地利用景观格局变化研究
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摘要
以澜沧县2005和2010年两期ETM影像解译数据为例,在3S和Fragstats软件支持下,分析了6 a间区域内景观格局的动态变化。结果表明,2005~2010年澜沧县各土地类型变化显著,除了灌木林和针叶林面积有所减少外,城镇居民用地、旱地、水田、桉树林、水域、荒地等地类面积均有不同程度的增加。景观类型转移变化表明,各土地类型间发生了相互转化,以灌木林、针叶林、阔叶林和荒地之间的转换最为显著。随着社会经济的快速发展,澜沧县景观整体斑块破碎化程度、形状指数呈下降趋势,斑块间的连通性呈增长趋势。
The landscape pattern changes of Lancang County in 6 years were analyzed by interpreting two sets of data from ETM remote sensing images in 2005 and 2010associated with GIS and Fragstats software.The results show that each land type change in Lancang County is significant from 2005 to 2010,except shrubbery and coniferous forest area has decreased,urban residential land,non-irrigated farmland,paddy fields,eucalyptus forests,waters,waste land and other type area have increased in varying degrees.The transformations of landscape from 2005 to 2010 demonstrated that there were mutual transformations between different types of land,majority of those transformations were transformed between shrubbery,coniferous forest,broadleaf forest and waste land.With the rapid development of social economy,the patch fragmentation degree of whole landscapes and shape index is decreased,while the connectivity between patches shows a rising trend in Lancang County.
The landscape pattern changes of Lancang County in 6 years were analyzed by interpreting two sets of data from ETM remote sensing images in 2005 and 2010associated with GIS and Fragstats software.The results show that each land type change in Lancang County is significant from 2005 to 2010,except shrubbery and coniferous forest area has decreased,urban residential land,non-irrigated farmland,paddy fields,eucalyptus forests,waters,waste land and other type area have increased in varying degrees.The transformations of landscape from 2005 to 2010 demonstrated that there were mutual transformations between different types of land,majority of those transformations were transformed between shrubbery,coniferous forest,broadleaf forest and waste land.With the rapid development of social economy,the patch fragmentation degree of whole landscapes and shape index is decreased,while the connectivity between patches shows a rising trend in Lancang County.
引文
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[4]乌日汗,温小荣,赵海霞,等.基于RS和GIS的深圳特区绿地景观动态分析及预测[J].北京林业大学学报,2010,32(6):42-47
[5]刘冬云.天津湿地景观格局动态变化研究[D].北京:北京林业大学,2012
[6]张飞,塔西甫拉提·特依拜,丁建丽,等.干旱区绿洲土地利用/覆被及景观格局变化特征[J].生态学报,2009,29(3):1251-1 263
[7]阳文锐.北京城市景观格局时空变化及驱动力[J].生态学报,2015,35(13):4 357-4 366
[8]白海花.内蒙古乌审旗近20 a的植被景观动态及预测[D].内蒙古:内蒙古农业大学,2012
[9]廖芳均,赵东升.南岭国家级自然保护区森林景观格局变化与动态模拟[J].地理科学,2014,34(9):1 099-1 107
[10]李小妹,严平.南岭国家级自然保护区森林景观格局变化与动态模拟[J].地理科学,2014,34(9):1 099-1 107
[11]王成,魏朝富,高明,等.土地利用结构变化对区域生态健康的影响[J].应用生态学报,2005,16(12):2 296-2 300
[12]崔晓伟,张磊,朱亮,等.三峡库区开县蓄水前后景观格局变化特征[J].农业工程学报,2012,28(4):227-234
[13]吴莉,侯西勇,徐新良,等.山东沿海地区土地利用和景观格局变化[J].农业工程学报,2013,29(5):207-216
[14]薛丽霞,王佐成,李永树.基于遥感的区域景观特征及其动态变化研究:以重庆市北部新区为例[J].国土资源遥感,2005(2):64-68
[15]崔爽.基于RS和GIS的深圳市景观格局时空变化研究[J].地理空间信息,2011,9(3):133-135
[16]吴昊,王维,王文杰,等.长株潭地区景观格局及其变化特征研究[J].地球信息科学学报,2010,12(1):133-142
[17]杨叶涛,龚建雅,周启鸣,等.土地利用景观格局对城市扩展影响研究[J].自然资源学报,2010,25(2):320-329
[18]邬建国.景观生态学:格局、过程、尺度与等级[M].北京:高等教育出版社,2000